HealthFlex
×
  • Home
  • Immunology Book
  • Lab Tests
    • Hematology
    • Fluid analysis
    • CSF
    • Urine Analysis
    • Chemical pathology
    • Blood banking
    • Fungi
    • General pathology
    • Immune system
    • Microbiology
    • Parasitology
    • Pathology
    • Tumor marker
    • Virology
    • Cytology
  • Lectures
    • Bacteriology
    • Immunology
    • Liver
    • Lymph node
    • Lymphoid system
    • Mycology
    • Pathology
    • Virology
  • Blog
    • Economics and technical
    • Fitness health
    • Mental health
    • Nutrition
    • Travel
    • Preventive health
    • Nature and photos
    • General topic
  • Medical Dictionary
  • About Us
  • Contact

Enteric fever – Part 4 – Typhidot Test for Diagnosis of Enteric fever

Enteric fever – Part 4 – Typhidot Test for Diagnosis of Enteric fever
February 14, 2021Lab TestsMicrobiology

Sample

  • Venous blood is taken to get the serum.

Indication

  • The main indication is to diagnose Typhoid fever.

Test principle

  1. This test detects antibody IgG and IgM in the serum of the patient.
  2. The commercial kit manufacturer claims that Typhidot can detect antibodies in the first few days of fever when Widal is negative.
  3. The Typhidot is easy to perform and requires no special equipment.
  4. Typhidot will be a useful complementary test to blood culture and the Widal test in typhoid fever diagnosis.
  5. Widal test is positive after at least 7 to 10 days of Typhoid fever.

Result accuracy

  1. The Typhidot test gave a sensitivity of 100 percent and specificity of 80 percent when bacteremic patients were analyzed.
  2. Another study shows the test’s sensitivity and specificity using blood culture as gold standard were 92.3 % and 98.8 %, respectively, for typhoid fever.
  3. One study was done in Pakistan.

Interpretation of Result

  1. IgM line positive = Acute typhoid fever.
  2. IgM +IgG positive = Acute typhoid fever.
  3. IgM negative and IgG positive = Past infection
    Interpretation of the Typhidot test in enteric fever

    Interpretation of the Typhidot test in enteric fever

  • NOTE: My personal experience is that widal is still a better option and more reliable than Typhidot because false-positive results are very common.

Possible References Used
Go Back to Lab Tests
  • Lab Tests
    • Blood banking
    • Chemical pathology
    • CSF
    • Cytology
    • Fluid analysis
    • Fungi
    • General pathology
    • Hematology
    • Immune system
    • Microbiology
    • Parasitology
    • Pathology
    • Tumor marker
    • Urine Analysis
    • Virology

About Us

Labpedia.net is non-profit health information resource. All informations are useful for doctors, lab technicians, nurses, and paramedical staff. All the tests include details about the sampling, normal values, precautions, pathophysiology, and interpretation.

info@labpedia.net

Quick Links

  • Blog
  • About Us
  • Contact
  • Disclaimer

Our Team

Professor Dr. Riaz Ahmad Bhutta

Dr. Naheed Afroz Syed

Dr. Asad Ahmad, M.D.

Dr. Shehpar Khan, M.D.

Copyright © 2020. All Rights Reserved.
Web development by Farhan Ahmad